718668328 has 64 divisors (see below), whose sum is σ = 1581505920. Its totient is φ = 299808000.

The previous prime is 718668299. The next prime is 718668329. The reversal of 718668328 is 823866817.

It is not an unprimeable number, because it can be changed into a prime (718668329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 343975 + ... + 346057.

It is an arithmetic number, because the mean of its divisors is an integer number (24711030).

Almost surely, 2^718668328 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 718668328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (790752960).

718668328 is an abundant number, since it is smaller than the sum of its proper divisors (862837592).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

718668328 is a wasteful number, since it uses less digits than its factorization.

718668328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2258 (or 2254 counting only the distinct ones).

The product of its digits is 774144, while the sum is 49.

The square root of 718668328 is about 26807.9900029823. The cubic root of 718668328 is about 895.7280378096.

The spelling of 718668328 in words is "seven hundred eighteen million, six hundred sixty-eight thousand, three hundred twenty-eight".